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Post-Installation Testing Procedure for Food-Grade Ultrasonic Level Sensors

Level meter /

1. Initial Inspection and Power-On Self-Test 1.1 Visual and Connection Inspection Ensure the probe surface is clean and free from contaminants. The emission surface must not be obstructed by food residues, foam, or debris. Verify that the shielded cable between the probe and controller is securely connected without looseness or poor contact. Confirm the power […]

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How to Determine Whether an Electromagnetic Flow Meter Electrode Is Faulty

Flow meter /

Electrodes are critical components of an electromagnetic flow meter. Their condition directly affects measurement accuracy and long-term performance. This guide provides systematic methods to assess electrode health and identify common issues during field operation. Part I: Methods for Evaluating Electrode Condition 1. Visual Inspection Check the sensor body for physical damage. Ensure sealing is intact

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How to Test Whether a Solenoid Valve Is Functioning Properly

Valve /

Solenoid valves are widely used in automation systems to control the flow of fluids or gases. Over time or during troubleshooting, it becomes necessary to test whether a solenoid valve is working correctly. This article outlines key components, step-by-step inspection methods, and safety tips for accurately diagnosing solenoid valve performance. 1. Main Components to Inspect

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A Comparative Overview of Three Pressure Tapping Methods for Orifice Flow Measurement

Flow meter /

In differential pressure-based flow measurement systems using orifice plates, the choice of pressure tapping method significantly affects accuracy, installation complexity, and maintenance. The three most common tapping configurations are Corner Tapping, Flange Tapping, and D–D/2 Tapping. Below is a detailed explanation of each method and their respective advantages and disadvantages. 1. Corner Pressure Tapping Configuration:

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Common Structures and Failure Modes of Shut-Off Valves in SIS Systems

Valve /

Introduction Shut-off valves serve as the final control element in Safety Instrumented Systems (SIS), playing a vital role in ensuring process safety. Due to their direct role in executing safety actions, shut-off valves are also among the most failure-prone components within the SIS safety loop. Depending on their structure and actuation mechanism, shut-off valves respond

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Zero Manual Intervention: A Dual Evolution of Technology and Human-Centered Management

Instrumentation /

In the era of industrial automation, “zero manual operation” has become a benchmark for evaluating the advancement of process units. While this objective appears straightforward, it embodies a complex interplay between technological innovation and human-centered management. As enterprises begin using the number of manual interventions as a performance metric, operators often face a dilemma—“Should I

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The Difference Between SIS (Safety Instrumented System) Interlocks and DCS (Distributed Control System) Interlocks

PLC /

In industrial automation and safety management, two critical systems ensure both the safety and efficiency of operations: the Safety Instrumented System (SIS) and the Distributed Control System (DCS). Both systems implement “interlocks” that trigger automatic responses to specific conditions in industrial processes, but their roles, purposes, and functions are fundamentally different. Understanding the distinction between

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Comparison Between Four-Wire and Two-Wire Ultrasonic Level Transmitters

Level meter /

Ultrasonic level transmitters are widely used in industrial process monitoring due to their non-contact measurement and robust adaptability. Among them, four-wire and two-wire ultrasonic level transmitters are two common types, each with distinct characteristics in wiring design, measurement performance, functionality, and cost-effectiveness. This article provides a comprehensive comparison to help users make informed selection decisions

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Can a DCS Be Used as a GDS Controller? A Technical Evaluation of Integrated Toxic and Combustible Gas Detection Systems

Instrumentation /

In chemical plants and industrial facilities, the presence of flammable and toxic gases is a common hazard due to process leaks, equipment failures, or accidental releases. To ensure personnel safety and prevent fire or explosion incidents, it is essential to install Gas Detection and Alarm Systems (GDS) at locations where such gases are likely to

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Real-Time Monitoring and Fault Prediction for Automated Equipment

Instrumentation /

Overview In today’s industrial production landscape, automated equipment plays a critical role. These systems not only improve production efficiency but also ensure the consistency of product quality. However, with prolonged operation and increasing complexity, equipment failures become almost inevitable. To minimize losses and ensure continuous, stable production, real-time monitoring and fault prediction of automated equipment

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